Gasket for hose-coupling.



J. W. SOUTHERN.

GASKET FOR HOSE COUPLINGS APPLICATION FILED F`EB.21.1918.

Peeeneed Feb.25,1919.

le. A. e e

ATTORNEYS` "broken frequently,

To all whom i2/may concern.'

Be it known that I, Jol-IN lV. SOUTHERN, a citizen of the Dominion otl Canada, residing at Vancouver, in the Province of British Columbia, Canada, have invented certain new and useful Improvements in Gaskets t'or Hose-Couplings, of which the following is a specification.

This invention relates to a gasket for rendering air-tight the joint ot' a pipe coupling such as is used to connect the air delivery pipes ot' pneumatic tools. These joints at present are made by flanged'gaske-ts molded ot' solid rubber, one in each halt` ot' the coupling and jointing together when the coupling connection is made. v

There' are thus two 'gaskets l.for each cou- ',pling vandtheretore three joints to maintain air-tight. `vl"urtherthe separate joint'is a rlibber-to-'rubber one which, when made and\i paired in a short time as the rubber faces will to mme extent adhere yand when drawn apart tear Vaway small pieces froml either tac'ef" i 4 In the invention, which is the subject ot this apjilicaltion, a single .tubular gasket is .used which is connected to one coupling and forms a separable connection wit-h the tace ot' `the other coupling, so that only two airtight joints are present in the connection ot the gasket. with the coupling.

' Further, the material used need not be of specially molded solid rubber but it may be made otl a short section ot' canvas and rubber-lined air pipe. This short-tubular gasket is provided on diametrically opposite sides with simple wire formed projections adjacent` one end, .which projections enter into the circun'iterential groove at present used to receive the flanged gasket. The tuhular gasket thus connected to one ot the coupling members ready tor application ot the other coupling member to it.

The invention is fully described in the following specification, reference being made to the drawings bywhich it is accompanied, in

which:

Figure 1 is a perspective view otl the tubular gasket.

Fig. 2 is a cross section thereof.

["ig. 3 is a detail perspective view, on a somewhat enlarged scale., ot' one ot' the. retaining loops hereinafter sperilically referred to.

Fig. l is a longitudinal section, parts be- Specification of Letters Patent.

Application filed February 27, 1918. l Serial No. 219,443.

is liable to be much im- JOHN WM. SOUTHERN, OF VANCOUVER, 'BRITISH COLUMBIA, CANADA.

GASKET FOR HOSE-COUPLING.

Patented Feb. 25, 1919n ing in side elevation.

ot' a coupling showing? the embodiment of my invention therewith. l

In these drawings 2 represents each part -ing studs G and quartered therewith each is provided with projections 7 designed to engage and retain the studs 6 of the other half'ot' the coupling'and hold the coupling against endwise movement apart. The gasket 8, which is the particular subject of this application, .is plainly cylindrical and is preferably cut from a` canvas reinforced rubber tube.. Its length should be slightly in excess of the distance between the faces 4 ot' the coupling when the two parts are connected together that it may be under j endwise lcompression in ilse. f In order to secure the tubular gasket 8 to. one halt' of the coupling, that it may be retained `there-with when the joint is broken, wire loops 9 are secured to diamctrically opposite sides of the gasket at such distance from one end that they will lie in the groove 5 of that halt' ot the coupling to which it is considered desirable to connect the gasket.

These loops 9 are preferably secured to the gasket by passing the two ends 10 ot' each loop together through the wall of the gasket 8 and by clenching these ends within the gasket by bending them apart, cach to the side ot the loop to which they belong, as shown in Fig. 3.

is bent to contorni to the circle ot the gasket,

so that the clenching bend l0 holds the loop I The inner side ot-the loop side otythe loop is also concentric with the faces 4 of the coupling and this compression and the internal pressure of the' arable joint is the end oi' the gasket on faced metal of one of the coupling members, instead of the rublber-to-rubber joint, as in the flanged gasket referred to. l j

The gasket is also vcheaper to manufacture and easier to apply, one ofthe wire loops 9 .being passed into the groove on one side, and the other loop inay then be readily passed under the opposite side by pressing the sides of the gasket together.

It is also less liable to blow out when the coupling is disconnected, as occasionally happens with the flanged gasket, where the escaping air gets under the wide flange.

Having now.particularly described my in- 25 .vention, I hereby declare that what I claiin as new and desire to be proteeted inby Letters Patent, is.

1. A gasket for an 'air pipe coupling, coinprising a hollow open-ended cylinder of iinpermeable elastic material, said cylinder having flat ear-like projections from its outer surface, which projections are adjacent and parallel to one end 0f the cylinder and on .Y diametrically opposite sides thereof.

A gasket for an air pipe coupling, coinprising a short length of rubber tube having flat ear-like projections from diametrically cylinder, said loops being adjacent and parallel to oneend. i y 4. A gasket foi' an air pipe coupling, coinprising'the combination with coupling inembers having opposed face joints and an annular groove surrounding each, of a hollow cylinder of rubber or the like adapted to endwise fit tightly between the joint faces, Iand 'ear-like members projecting from the outer surface of the cylinder for engaging the annular groove of thel facejoint of one half of the coupling to retain the cylinder in its conv nection therewith.

5. A gasket for an air pipe coupling, comprising the combination with coupling meinbers having` opposed face joints and an annular groove surrounding each face, of a hollow cylinder of rubber or the like adapted i to tightly fit eiidwise between the joint faces of the coupling when the saine is connected and a loop of wire secured to diainetrically opposite sides of the cylinder to project theiefrom parallel to. and adjacent one end face` the ends of the wire of said loops being passed together through the material of the cylinder and clenched on' the inner side by bending each end toward the side of the loop t0'- which it belongs.

In testimony whereof I affix niy signature.

J OHN WM. SOUTHERN. l 

